2014
SU‐E‐T‐518: Dosiemtric Impact of Patient Positioning Uncertainty in SBRT Treatments
Abbas H, Abolfath R, Nath R, Chen Z. SU‐E‐T‐518: Dosiemtric Impact of Patient Positioning Uncertainty in SBRT Treatments. Medical Physics 2014, 41: 346-346. DOI: 10.1118/1.4888851.Peer-Reviewed Original ResearchPatient positioning uncertaintiesDosimetric impactSuperior-inferior directionTreatment planLung SBRTCourse of treatmentSpine SBRT patientsOriginal treatment planLung doseCertain patientsAnterior-posterior positionPractice guidelinesIsocenter positioningSBRT treatmentSBRT patientsMinimum doseMaximum doseSBRTPatientsDoseMinimal dosimetric impactSpine SBRTProstateMonitor unitsTreatment planning system
2009
AAPM recommendations on dose prescription and reporting methods for permanent interstitial brachytherapy for prostate cancer: Report of Task Group 137
Nath R, Bice WS, Butler WM, Chen Z, Meigooni AS, Narayana V, Rivard MJ, Yu Y. AAPM recommendations on dose prescription and reporting methods for permanent interstitial brachytherapy for prostate cancer: Report of Task Group 137. Medical Physics 2009, 36: 5310-5322. PMID: 19994539, PMCID: PMC2776817, DOI: 10.1118/1.3246613.Peer-Reviewed Original ResearchConceptsBiological equivalent doseTumor volumeDose prescriptionStandard of careProstate cancer patientsPermanent interstitial brachytherapyAcute single dosesEffects of edemaCancer patientsSurgical traumaIntraoperative implantationSingle dosesClinical trialsProstate cancerRadiobiological modelsCurrent recommendationsInterstitial brachytherapyMore specific guidelinesRoutine patient treatmentsDifferent dose distributionsTreatment planPatient treatmentTarget volumeMost implantsDose distributionMonte Carlo Investigation of Stereotactic Radiosurgery of Spinal Metastases
Deng J, Chen Z, Knisely J, Decker R, Chiang V, Nath R. Monte Carlo Investigation of Stereotactic Radiosurgery of Spinal Metastases. IFMBE Proceedings 2009, 25/1: 13-16. DOI: 10.1007/978-3-642-03474-9_4.Peer-Reviewed Original ResearchSpinal metastasesStereotactic radiosurgeryDose-volume histogramsMean doseAnalytical anisotropic algorithmRisk of recurrenceTarget dose coverageDose distributionPencil beam convolutionSpinal cordDose coverageTarget dosePTV doseTreatment planMetastasisHomogeneity indexDoseRadiosurgeryPBC resultsPatientsTreatment planning systemPatient anatomyCommercial treatment planning systemDose discrepanciesAccurate dose distribution
2008
A Constrained Non-rigid Registration Algorithm for Use in Prostate Image-Guided Radiotherapy
Greene W, Chelikani S, Purushothaman K, Chen Z, Knisely J, Staib L, Papademetris X, Duncan J. A Constrained Non-rigid Registration Algorithm for Use in Prostate Image-Guided Radiotherapy. Lecture Notes In Computer Science 2008, 11: 780-788. PMID: 18979817, PMCID: PMC2790815, DOI: 10.1007/978-3-540-85988-8_93.Peer-Reviewed Original ResearchMeSH KeywordsAlgorithmsArtificial IntelligenceHumansImaging, Three-DimensionalMalePattern Recognition, AutomatedProstatic NeoplasmsRadiographic Image EnhancementRadiographic Image Interpretation, Computer-AssistedRadiotherapy, Computer-AssistedReproducibility of ResultsSensitivity and SpecificitySubtraction TechniqueTomography, X-Ray ComputedConceptsTreatment planProstate image-guided radiotherapyOriginal treatment planRadiation dosageImage-guided radiotherapyTreatment daysRadiotherapy treatment plansCritical organsDifferent patientsPatient dataDifferent treatment daysBladderRectumProstateFemurBone motionCT imagesDosageReal patient dataPatientsRadiotherapy
2004
A technique to re-establish dose distributions for previously treated brain cancer patients in external beam radiotherapy
Yue NJ, Knisely JP, Studholme C, Chen Z, Bond JE, Nath R. A technique to re-establish dose distributions for previously treated brain cancer patients in external beam radiotherapy. Medical Dosimetry 2004, 29: 31-41. PMID: 15023391, DOI: 10.1016/j.meddos.2003.09.004.Peer-Reviewed Original ResearchConceptsPrevious treatmentCurrent treatmentTreatment planPrevious treatment sessionTime of reirradiationCurrent treatment planExternal beam radiotherapyBrain cancer patientsNew treatment planPatient coordinate systemDose distributionPatient anatomyCancer patientsTumor recurrenceCurrent patient anatomyBeam radiotherapyNew tumorsTreatment sessionsTreatment dose distributionsIsocenter coordinatesPatient positionNew patient anatomyBrain treatmentCollimator anglesRadiotherapy treatment